NFPA - National Fire Protection Act.

NMFC — National Motor Freight Classifications.

NOS — Not Otherwise Specified.

National Electrical Code — A code issued by the National Fire Protection Association describing minimum wiring requirements on electrical installations. It includes sections on temporary installations (such as construction sites and trade shows), theatrical installations, as well as office, kitchen, and storage areas. The code does not carry the force of law unless adopted by the authority having jurisdiction.

National Labor Relations Act —The act covers the legal requirements that must be met by employers and labor organizations.

National Union — Union having membership only within the United States.

Naugahyde — A synthetic, leather-like material.

Negative — A reverse print.

Neoprene — A rubberlike material.

Nesting — Multiple objects fitting together in order to conserve space and improve safety for shipping or storage

Net Square Footage — The amount of space occupied by exhibits in a facility, not including aisles, columns, registration areas, etc.

Nomenclature of the Customs Cooperation Council — The customs tariff used by many countries worldwide, including most European nations, but not the United States. It is also known as the Brussels Tariff Nomenclature. Compare STANDARD INDUSTRIAL CLASSIFICATION or STANDARD INTERNATIONAL TRADE CLASSIFICATION.